13220958 has 16 divisors (see below), whose sum is σ = 26497296. Its totient is φ = 4397760.

The previous prime is 13220953. The next prime is 13220971. The reversal of 13220958 is 85902231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (1656081).

Almost surely, 2^13220958 is an apocalyptic number.

13220958 is an abundant number, since it is smaller than the sum of its proper divisors (13276338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220958 is a wasteful number, since it uses less digits than its factorization.

13220958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13220958 is about 3636.0635307981. The cubic root of 13220958 is about 236.4581614848.

The spelling of 13220958 in words is "thirteen million, two hundred twenty thousand, nine hundred fifty-eight".